As someone who went through the same journey as you OP, I went the 60 series route. Some things I learned:
1. Do not compare a 60 series to a modern vehicle. You will likely be disappointed.
2. Test drive one. Test drive will likely make a lot of the decisions for you. They are very different. See 1.
3. Have tools and be ready to work on it. A lot. If you are like me, you will likely go broke having others work on it for you and it will sit in the driveway more than get on the road.
4. Most of the 60 trucks for sale are not 'get in and go' type vehicles after purchase. With time and effort you can get them close, but time and effort. They always need something. Always. There is a whole forum based on that idea.
5. I found mine with stock desmogged drivetrain and 33's to be fairly useless in the mountains or really any incline. Can be improved but I wouldn't underestimate how slow and heavy they feel. Again, see 1.
6. If I'm honest with myself, I found mine to be fairly miserable to drive on the hwy for any trip over a couple of hours. With effort that can be made better.
7. There is so much pride in putting the effort into saving one of these beasts. After years of various work on mine, there was really nothing more satisfying than proving myself right about what it could be, and proving everyone else who said I was nuts to own one wrong. Every successful mile becomes a hard-fought victory.
8. Be prepared to have every camper come talk to you about your 60 series if you go that route. Everyone loves these vehicles, but few are brave enough to own one. Having one makes you a magnet for conversation from folks young and old. I've had everyone from housewives to hard rock miners ask me about mine.
Ultimately, no one here can really tell you what you should do. But if asking this sort of question OP, you may want to look at some of the more modern Toyota variants mentioned. When you know, you know. I tried to convince myself a 60 series was fine for just the sort of use you describe OP. I found I spent more time worrying about it than enjoying it. They are very coveted these days and it freaked me out a bit to take something seemingly this collectable out into the wild. Seems like a good idea, but for me it just worried me all the time. Worried about every little new noise I heard and just never could convince myself of its reliability. The cool factor is off the charts, but will be soon forgotten once reality sets in. I'm in the minority on this forum here with that thinking, but it was my experience.
Maybe some motivational photos of what camp life with one of these could look like:
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Then there is this:
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GL with your decision.